DE3278431D1 - Fully compensated fluid control valve - Google Patents
Fully compensated fluid control valveInfo
- Publication number
- DE3278431D1 DE3278431D1 DE8282901072T DE3278431T DE3278431D1 DE 3278431 D1 DE3278431 D1 DE 3278431D1 DE 8282901072 T DE8282901072 T DE 8282901072T DE 3278431 T DE3278431 T DE 3278431T DE 3278431 D1 DE3278431 D1 DE 3278431D1
- Authority
- DE
- Germany
- Prior art keywords
- control valve
- fluid control
- fully compensated
- compensated fluid
- fully
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
- F15B11/02—Systems essentially incorporating special features for controlling the speed or actuating force of an output member
- F15B11/04—Systems essentially incorporating special features for controlling the speed or actuating force of an output member for controlling the speed
- F15B11/044—Systems essentially incorporating special features for controlling the speed or actuating force of an output member for controlling the speed by means in the return line, i.e. "meter out"
- F15B11/0445—Systems essentially incorporating special features for controlling the speed or actuating force of an output member for controlling the speed by means in the return line, i.e. "meter out" with counterbalance valves, e.g. to prevent overrunning or for braking
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
- F15B13/04—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor
- F15B13/0416—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor with means or adapted for load sensing
- F15B13/0417—Load sensing elements; Internal fluid connections therefor; Anti-saturation or pressure-compensation valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
- F15B2211/205—Systems with pumps
- F15B2211/2053—Type of pump
- F15B2211/20546—Type of pump variable capacity
- F15B2211/20553—Type of pump variable capacity with pilot circuit, e.g. for controlling a swash plate
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/30—Directional control
- F15B2211/305—Directional control characterised by the type of valves
- F15B2211/30525—Directional control valves, e.g. 4/3-directional control valve
- F15B2211/3053—In combination with a pressure compensating valve
- F15B2211/30535—In combination with a pressure compensating valve the pressure compensating valve is arranged between pressure source and directional control valve
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/40—Flow control
- F15B2211/405—Flow control characterised by the type of flow control means or valve
- F15B2211/40515—Flow control characterised by the type of flow control means or valve with variable throttles or orifices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/40—Flow control
- F15B2211/45—Control of bleed-off flow, e.g. control of bypass flow to the return line
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/60—Circuit components or control therefor
- F15B2211/605—Load sensing circuits
- F15B2211/6051—Load sensing circuits having valve means between output member and the load sensing circuit
- F15B2211/6057—Load sensing circuits having valve means between output member and the load sensing circuit using directional control valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
- F15B2211/76—Control of force or torque of the output member
- F15B2211/761—Control of a negative load, i.e. of a load generating hydraulic energy
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/8593—Systems
- Y10T137/87169—Supply and exhaust
- Y10T137/87177—With bypass
- Y10T137/87185—Controlled by supply or exhaust valve
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/8593—Systems
- Y10T137/87169—Supply and exhaust
- Y10T137/87233—Biased exhaust valve
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fluid-Pressure Circuits (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US06/247,887 US4362087A (en) | 1981-03-26 | 1981-03-26 | Fully compensated fluid control valve |
PCT/US1982/000213 WO1982003432A1 (en) | 1981-03-26 | 1982-02-22 | Fully compensated fluid control valve |
Publications (1)
Publication Number | Publication Date |
---|---|
DE3278431D1 true DE3278431D1 (en) | 1988-06-09 |
Family
ID=22936795
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE8282901072T Expired DE3278431D1 (en) | 1981-03-26 | 1982-02-22 | Fully compensated fluid control valve |
Country Status (5)
Country | Link |
---|---|
US (1) | US4362087A (de) |
EP (1) | EP0075577B1 (de) |
JP (1) | JPS58500417A (de) |
DE (1) | DE3278431D1 (de) |
WO (1) | WO1982003432A1 (de) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4416304A (en) * | 1981-03-26 | 1983-11-22 | Caterpillar Tractor Co. | Fully compensated fluid control valve |
US4437307A (en) * | 1982-03-11 | 1984-03-20 | Caterpillar Tractor Company | Priority flow control system |
US4436115A (en) * | 1982-03-11 | 1984-03-13 | Caterpillar Tractor Company | Pressure compensated fluid control valve with maximum flow adjustment |
US4416189A (en) * | 1982-06-21 | 1983-11-22 | Caterpillar Tractor Co. | Fully compensated fluid control valve |
AU3152084A (en) * | 1984-05-07 | 1985-11-28 | Caterpillar Tractor Co. | Load responsive fluid control value |
DE3446945C2 (de) * | 1984-12-21 | 1994-12-22 | Rexroth Mannesmann Gmbh | Wegeventil mit eingebautem vorgesteuerten Stromregelventil |
US4610194A (en) * | 1985-03-01 | 1986-09-09 | Caterpillar Inc. | Load sensing circuit of load responsive direction control valve |
US4813235A (en) * | 1987-06-09 | 1989-03-21 | Deere & Company | Hydraulic gain reduction circuit |
US4793238A (en) * | 1987-07-01 | 1988-12-27 | Caterpillar Inc. | Control signal blocking direction control valve in load-sensing circuit |
CN102330714B (zh) * | 2011-10-18 | 2013-03-13 | 常德中联重科液压有限公司 | 负载反馈控制阀 |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
USRE29538E (en) * | 1971-09-30 | 1978-02-14 | Load responsive fluid control valve | |
US4153075A (en) * | 1975-11-26 | 1979-05-08 | Tadeusz Budzich | Load responsive control valve |
US4180098A (en) * | 1976-02-05 | 1979-12-25 | Tadeusz Budzich | Load responsive fluid control valve |
US4075842A (en) * | 1976-10-05 | 1978-02-28 | Tadeusz Budzich | Load responsive fluid control system |
US4209039A (en) * | 1978-04-10 | 1980-06-24 | Tadeusz Budzich | Load responsive control valve |
US4222409A (en) * | 1978-10-06 | 1980-09-16 | Tadeusz Budzich | Load responsive fluid control valve |
US4285195A (en) * | 1980-01-02 | 1981-08-25 | Tadeusz Budzich | Load responsive control system |
-
1981
- 1981-03-26 US US06/247,887 patent/US4362087A/en not_active Expired - Fee Related
-
1982
- 1982-02-22 DE DE8282901072T patent/DE3278431D1/de not_active Expired
- 1982-02-22 JP JP57501090A patent/JPS58500417A/ja active Granted
- 1982-02-22 WO PCT/US1982/000213 patent/WO1982003432A1/en active IP Right Grant
- 1982-02-22 EP EP82901072A patent/EP0075577B1/de not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPH039321B2 (de) | 1991-02-08 |
JPS58500417A (ja) | 1983-03-17 |
EP0075577A4 (de) | 1986-02-13 |
EP0075577A1 (de) | 1983-04-06 |
EP0075577B1 (de) | 1988-05-04 |
WO1982003432A1 (en) | 1982-10-14 |
US4362087A (en) | 1982-12-07 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |